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Jurnal Pijar MIPA
Published by Universitas Mataram
ISSN : 19071744     EISSN : 24601500     DOI : -
Core Subject : Science, Education,
Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics
Jurnal Pijar MIPA (e-ISSN: 2460-1500 & p-ISSN: 1907-1744) is an open-access scientific periodical journal published by the Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA publishes original articles on current issues and trends in mathematics-science-science education studies. In addition, this journal addresses issues concerning environmental education and environmental science. The journal scopes are: a. Physics and Physics Education b. Chemistry and Chemistry Education c. Biology and Biology Education d. Natural Science and Science Education e. Mathematics and Mathematics Education f. Environmental and Environmental Education
Arjuna Subject : Umum - Umum
Articles 1,179 Documents
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Instruments development for measuring student worksheet media based on scientific approaches Mery Berlian; Dindawini Salsabilla Dinda; Rian Vebrianto
Jurnal Pijar Mipa Vol. 18 No. 2 (2023): March 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i2.4537

Abstract

Student Worksheets a media in the form of sheets containing tasks and activities that students must carry out, which are useful in supporting the learning process, one of which is in the material on the Structure and Function of Plant Tissues so that students can be active in the learning process. An assessment instrument is needed for the Student Worksheets. For this reason, this study aimed to measure the instrument's validity and reliability for using Student Worksheets as a learning media. This study used Research and Development (RND) methodology with an instrument in the form of a Student Worksheets measurement questionnaire consisting of three constructs: product design, material feasibility, and language feasibility. This research was carried out by involving seven teachers from several schools. Data were obtained by distributing the questionnaire via a Google form from September to October 2022 by obtaining prior consent from the respondents. The data obtained were quantitative, then analyzed using SPSS version 29 in the form of Alpha Cronbach analysis. The results of the test show that the validity of the instrument data meets the valid and reliable criteria with each Cronbach Alpha value per construct, namely Product Design (0.795), Material Feasibility (0.712), and Language Feasibility (0.712). Therefore, this study shows that the developed instrument meets the use requirements in developing Student Worksheets media students. Thus, stakeholders and teachers can use this instrument to develop media, particularly Student Worksheets, whereas further researchers can use this instrument to measure media before the study.
Improving student involvement in physics statistics through e-task Zakirman Zakirman
Jurnal Pijar Mipa Vol. 18 No. 2 (2023): March 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i2.4582

Abstract

The Open Educational Resources (OER) media is used in distance lectures in Statistical Physics to increase student learning resources. However, OER needs to support distance lectures optimally. Therefore, a case-based E-task is needed as an alternative solution. This study investigated the effect of using e-Task on student involvement in Statistical Physics lectures. This type of research is quasi-experimental. This research was conducted in semester 2021.2 at the Open University, involving a sample of students taking statistical physics courses in the Physics Education program. The data analysis technique used was the independent sample t-test, with the data being normally distributed and homogeneous. Based on the results of the independent sample t-test analysis above, it can be concluded that the experimental class has a higher score than the control class, namely the attendance percentage is 100, the discussion percentage is 80.8, and case-based e-task solving is 7.3. It shows that there is a significant difference between the experimental class and the control class. Thus the use of e-task can increase student involvement in Statistical Physics lectures.
Imperfection method based on optical fiber for alcohol content detection sensor Muhammad Yunus; Syahdad Aziz; Bunga Tang; Yusuf H. Usman; Irsan Irsan; Septiana Kurniasari
Jurnal Pijar Mipa Vol. 18 No. 2 (2023): March 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i2.4605

Abstract

Testing of optical fiber-based sensors using the imperfection method to detect alcohol contents. The sample results from mixing alcohol and distilled water to produce eight samples with an alcohol content level from 0% to 70%. The greater alcohol content causes the output power of the sensor to decrease due to the increase in the refractive index of alcohol content around the sensor. An increase in the refractive index of alcohol content causes power losses to increase, resulting in lost light intensity being transmitted in optical fiber-based sensors. Power losses are increasing to produce the best characteristics of the sensor. The best sensor is shown in the Gamma configuration at imperfection 3 with a sensitivity value of 0.346 µW/%. The imperfection method is suitable for determining the characteristics of optical fiber-based alcohol detection sensors because it has a high sensitivity.
Validity of powerpoint-ispring learning media on carbohydrate materials in high school Mila Lestari; Guspatni Guspatni
Jurnal Pijar Mipa Vol. 18 No. 2 (2023): March 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i2.4635

Abstract

Carbohydrate material is a theoretical chemical that connects every concept to make it seem abstract. It resulted in students needing help understanding the material. Learning media can help students understand the material, which can display animations, pictures, and videos. One learning media that can display this is the PowerPoint-iSpring learning media. This study aimed to determine the validity value of PowerPoint-iSpring learning media on carbohydrates for class XII high school students. This research is educational design research using the Plomp model. The subjects of this study were three chemistry lecturers at the Chemistry Education Study Program, Faculty of Mathematics and Natural Sciences, Padang State University and two high school chemistry teachers, and class XII students at SMAN 7 Padang. The instruments used were teacher interview sheets, student questionnaires, and validity test questionnaires. The type of data is primary data which was analyzed using Aiken's V formula. The results of this study obtained a content validity test of 0.85, construct validity of 0.81, and media validity of 0.81. In conclusion, the learning media developed could be categorized as valid.
How is student scientific attitude profile toward chemistry learning with research-oriented collaborative inquiry learning? Yuyum Fahmidani; Eli Rohaeti
Jurnal Pijar Mipa Vol. 18 No. 2 (2023): March 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i2.4658

Abstract

This study aims to describe the profile of scientific attitudes of XI grade high school students in Sleman who learned with the Research-Oriented Collaborative Inquiry Learning REORCILEA. The sample in this research was 30 high school students who were selected using a purposive sampling technique. REORCILEA is an integrated learning model between research-based, inquiry, and collaborative learning. The research was descriptive qualitative designed, and the results of the descriptive analysis revealed that high school students who taught with REORCILEA had a 10% good, 86, 67 % enough, and 3.33 % low scientific attitude profile. Scientific attitude toward chemistry learning profile assessed with a questionnaire developed by the researcher. Students' scientific attitudes are described by seven aspects of scientific attitude, specifically curiosity, rational thinking, openmindedness, concern with evidence, and honest acting according to the rules.
Development of an assessment instrument to evaluate the concepts of chemical equilibrium at macroscopic, sub-microscopic, and symbolic representation levels using the rasch model Difa Aulia Putri Rizal; Faizah Qurrata Aini
Jurnal Pijar Mipa Vol. 18 No. 2 (2023): March 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i2.4720

Abstract

This study aims to develop a test instrument that can be used to evaluate the concept of chemical equilibrium at the macroscopic, submicroscopic, and symbolic levels of high school students who are declared valid, reliable, have a difficulty index, and have good item discrimination. This study was designed using the Rasch development model, which Wei has modified with ten research stages. The results of the research to test content validity were analyzed through the minifacets program with five validators consisting of four chemistry lecturers at Padang State University and one teacher at high school SMAN 3 Padang, obtaining fit analysis results seen from the exact agreement value of 89.1%, which is very close to the expected agreement value of 89.7%. The test results on 30 students of SMAN 3 Padang who were analyzed through the ministep program showed valid results for all items because they met the criteria for the MNSQ, ZSTD, and Pt Mean Corr outfit scores. The reliability value obtained for the item is 0.74, which meets the sufficient criteria, and Cronbach's alpha reliability value is 0.74, which meets the good criteria. All question items also do not have DIF based on gender. The analyzed index of difficulty and discriminating power fulfilled the good criteria with the classification of easy, medium, and difficult items.
Development of a test instrument using multiple representations to assess students understanding: A Rasch Model Analysis Yayang Andita Putri; Faizah Qurrata Aini
Jurnal Pijar Mipa Vol. 18 No. 2 (2023): March 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i2.4721

Abstract

Today's test instruments used in schools are still ineffective in assessing students' multi-representational understanding of the "rate of reaction" topic. Hence, teachers need to accurately and comprehensively know the depth of students' understanding. In this study, a test instrument was produced to assess the level of macroscopic, submicroscopic, and symbolic understanding of high school students in the rates of reaction topic. The method used is Research and Development (R&D) based on the Rasch modeling approach, which is modified in ten stages, i.e., (1) defining construct, (2) identifying question indicators, (3) compiling items, scoring rubrics, scoring guidelines, and the guidelines to analyze student's level of understanding, (4) conducting the pilot test, (5) analyzing data with the Rasch model, (6) reviewing the suitability of items, (7) reviewing the Wright map, (8) repeating steps 4-7 until all items fit, (9) claiming the instrument's quality, and (10) documenting the instrument. All items proved valid because they met the fit criteria of MNSQ, ZSTD, and PT Measure scores. Instrument reliability reaches the score of 0.89 (good). The instrument has a four-difficulty index, dominated by moderate difficulty (70.6%). This instrument is relatively easy. The instrument also has four discrimination indexes: very difficult, difficult, medium, and easy. It proves that this assessment instrument is of good quality and suitable for school use.
Development of android-based learning media applications on mole concept topics for high school students Istiva Depiyahani; Fajriah Azra
Jurnal Pijar Mipa Vol. 18 No. 2 (2023): March 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i2.4725

Abstract

This study aims to develop a product in the form of an Android-based learning media application based on the mole concept material for class X SMA/MA that is valid and practical. The study uses the Plomp development research model, which consists of three steps: preliminary research, prototyping phase, and assessment phase. This research is limited to the prototyping phase for the practicality stage of the small group evaluation. Three chemistry lecturers carried out the product validity test at the Faculty of Mathematics and Natural Sciences, Padang State University, two Al-istiqamah High School chemistry teachers as material experts, and two lecturers of informatics engineering at Padang State University as media experts. Fifteen students and two chemistry teachers carried out the practicality test. The validity data analysis technique uses Aiken's V index. The validity test results showed that the Android-based learning media application developed belongs to the valid category with an average V value of 0.86 for material experts and an average V value of 0.93 for media experts. The practicality data analysis technique uses a percentage formula. The results of the practicality test in small groups are classified as "very practical," with a practicality percentage value of 90% for students' practicality and a practicality percentage value of 92% for teachers' practicality. Based on the results of the validation and practicality tests, it was found that applying android-based learning media to the mole concept material was valid and practical.
Evaluation of the implementation of school exams using the brinkerhoff model in physics subjects in senior high school Rabiyanti B. Kamali; Masri Kudrat Umar; Dewi Diana Paramata; Supartin Supartin; Tirtawaty Abdjul; Dewa Gede Eka Setiawan
Jurnal Pijar Mipa Vol. 18 No. 2 (2023): March 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i2.4755

Abstract

School exam is one of the benchmarks of student learning outcomes as a test that is expected to provide information on the ability of students that can be used to consider and describe the achievement of students, especially in physics subjects. This study aims to describe the suitability of fixed vs. emergent design, formative vs. summative design, experimental design, and quasi-experimental vs. natural inquiry evaluation of the implementation of school exams in physics subjects in high school. This research uses the Brinkerhoff evaluation model proposed by Robert O. Brinkerhoff. The method used in this research is quantitative, and this type of research is evaluative. The data collection technique used a questionnaire, supported by observation and documentation, and a literature study to give meaning to the research results. The results showed that overall the organization of school exams in physics subjects in high school was very good. In the fixed vs. emergent design component, a total average of 95% is obtained from the teacher's perspective and 87% from the student's perspective, which is very good. Furthermore, for the formative vs. summative design component, a total average of 94% was obtained from the teacher's perspective and 88% from the student's perspective, which was in the excellent category. Then the experimental design and quasi-experimental vs. natural inquiry obtained a total average of 96% in the teacher's perspective and 88% in the student's perspective, which is in the excellent category. Thus, the implementation of school exams in physics subjects in high school is very good, but further research needs to be carried out to analyze, maintain, and at the same time improve what is lacking in terms of organizing school exams, starting from the preparation, implementation, and closing stages.
Effectiveness of the chemical ludo game on shifting equilibrium material and the factors that influence on learning outcomes Resha Rinelda; Iswendi Iswendi
Jurnal Pijar Mipa Vol. 18 No. 2 (2023): March 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i2.4758

Abstract

This research is a continuation of development research with a 4-D model developed by Rini Fauza and Iswendi with the title Development of Ludo Chemistry Games as Learning Media on Material Shifting Equilibrium and Factors Affecting It Class XI SMA/MA which is valid but has not been tested for practicality and its effectiveness. This study aims to determine the level of practicality and effectiveness of chemical ludo games. The research design was the Pretest-Posttest Control Group Design. The research sample was XI MIPA 1 as the experimental class and XI MIPA 2 as the control class. Practicality data were analyzed with the practicality percentage and effectiveness data with the N-Gain test. The data analysis results on the practicality of teachers and students are in the very practical category. The results of the N-Gain analysis in the experimental class were 80% in the effective category and in the control class 74% in the quite effective category, which was supported by the learning outcomes of the experimental class, which were higher than the control class. The average posttest scores for the experimental and control classes were 84.83 and 81.17, respectively. The learning outcomes of the experimental class increased from the control class where tcount (2.465) > ttable (2.002) at a significant level α = 0.05. Ludo chemistry games as learning media are very practical and effective in improving student learning outcomes in the cognitive domain of class XI SMAN 1 Lubuk Basung.

Page 63 of 118 | Total Record : 1179

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